GSTDTAP  > 地球科学
DOI10.1073/pnas.1918056117
Superconductivity found in meteorites
Wampler, James1,2; Thiemens, Mark3; Cheng, Shaobo4; Zhu, Yimei4; Schuller, Ivan K.1,2
2020-04-07
发表期刊PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
出版年2020
卷号117期号:14页码:7645-7649
文章类型Article
语种英语
国家USA
英文摘要

Meteorites can contain a wide range of material phases due to the extreme environments found in space and are ideal candidates to search for natural superconductivity. However, meteorites are chemically inhomogeneous, and superconducting phases in them could potentially be minute, rendering detection of these phases difficult. To alleviate this difficulty, we have studied meteorite samples with the ultrasensitive magnetic field modulated microwave spectroscopy (MFMMS) technique [J. G. Ramirez, A. C. Basaran, J. de la Venta, J. Pereiro, I. K. Schuller, Rep. Prog. Phys. 77, 093902 (2014)]. Here, we report the identification of superconducting phases in two meteorites, Mundrabilla, a group IAB iron meteorite [R. Wilson, A. Cooney, Nature 213, 274-275 (1967)] and GRA 95205, a ureilite [J. N. Grossman, Meteorit. Planet. Sci. 33, A221-A239 (1998)]. MFMMS measurements detected superconducting transitions in samples from each, above 5 K. By sub-dividing and remeasuring individual samples, grains containing the largest superconducting fraction were isolated. The superconducting grains were then characterized with a series of complementary techniques, including vibrating-sample magnetometry (VSM), energy-dispersive X-ray spectroscopy (EDX), and numerical methods. These measurements and analysis identified the likely phases as alloys of lead, indium, and tin.


英文关键词superconductivity meteorites extraterrestrial
领域地球科学 ; 气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000524486300021
WOS关键词INCLUSION ; MYSTERITE ; UREILITES ; ORIGIN
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/249563
专题地球科学
作者单位1.Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA;
2.Univ Calif San Diego, Ctr Adv Nanosci, La Jolla, CA 92093 USA;
3.Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA;
4.Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA
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GB/T 7714
Wampler, James,Thiemens, Mark,Cheng, Shaobo,et al. Superconductivity found in meteorites[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(14):7645-7649.
APA Wampler, James,Thiemens, Mark,Cheng, Shaobo,Zhu, Yimei,&Schuller, Ivan K..(2020).Superconductivity found in meteorites.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(14),7645-7649.
MLA Wampler, James,et al."Superconductivity found in meteorites".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.14(2020):7645-7649.
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